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Ozone-depleting substance emissions, 1961 to 2014

Global emissions of ozone-depleting substances, measured in tonnes of chlorofluorocarbon-11 equivalents (CFC₁₁-equivalents) per year. Emissions of
ozone-depleting substances are weighted by their potential to destroy ozone (their ozone-depleting potential). Total emissions include emissions from natural and
man-made sources.

1961201419701980199020002010Natural emissionsTotal emissions

Source: Hegglin et al. (2014). Twenty questions and answers about the ozone layer: 2014 update.